that. The coast-to-coast wild weather setting in and heavy fog, even dust storms, ginger. How you kick off a dust storm like that, you go from 63 in Depp and almost three hours later or less you go to in the 20s. So drop it off some 40 degrees and this morning the windchill in Denver is 9. There are windchill advisories from Minneapolis to Chicago. Iowa also included in that and then that dense fog. All along the gulf coast from Corpus Christi to central Louisiana, Houston less tan a quarter mile and that's where we begin our story this morning. Dense fog suffocating the morning commute again from Houston to New Orleans. And in the gulf, stranded by fog, the carnal "Triumphth unable to dock closing the port since yesterday. That was the ship know tore use for losing power for five days in the gulf last year now stuck at sea again this will that fog lifts. Not fog but dust in Denver. An imposing haboob raising across the land engulfing parts of the mile high city after temperatures dropped almost 40 degrees in just two hours. The shift to spring in Virginia forcing a dramatic rescue. Police using a helicopter to reach a man and two dogs after their canoe flood on icy waters. And in Detroit, roads like Rinks. Some cars slipping and sliding. Others frozen in place that seems like a never-ending winter. I had to call aaa to get me out of my spot. Reporter: The weather threat, ice jams forcing flooding along rivers threatening homes. Now that mud slide alert out west. We finally have a rainy pattern which is great news but a lot of it going to fall and fall very quickly. Look at that bull's-eye north of Los Angeles, 4 to 6 inches could fall in the next four or five days so really important to be watching the next five days in L.A. And, of course, San Diego in line for it too.

This transcript has been automatically generated and may not be 100% accurate.

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